The Australia women's Water Polo team hung on to beat world champions Italy 10-8 and kick-start their Olympic Games campaign.
They led for almost all of the Group A match, but the Italians kept bouncing back in a thrilling cat-and-mouse encounter. However, Australia held their nerve to close out victory.
Australia captain Kate Gynther scored a hat-trick, while Nicola Zagame slotted home twice. Single goals from Holly Lincoln-Smith, Bronwen Knox, Rowie Webster, Glencora Ralph and Ash Southern completed the tally.
Italy duo Federica Radicchi and Tania di Mario each scored a brace, with Simona Abbate, captain Elisa Casanova, Aniko Pelle and Roberta Bianconi contributing a goal each to their haul.
Meanwhile, USA edged past Hungary 14-13 in a thrilling match.
Maggie Steffens scored seven for the winning side, while Courtney Mathewson found the back of the net four times.
Captain Brenda Villa, Kelly Rulon and Kami Craig each scored one goal.
Barbara Bujka scored four for Hungary, Dora Antal netted three, and Gabriella Szucs scored two.
Orsolya Takacs, captain Rita Dravucz, Ildiko Toth and Dora Csabai scored one goal.
In other games, Spain overcame China 11-6 and Russia edged out Host Nation Great Britain 7-6.